Question about 2002 Pontiac Grand Prix

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High speed vibration

I drive a 02 grand prix with 88k on it about a month ago I noticed what seemed to be a vibration in the pedals and the steering column. At this point there was no signs of a problem because I wasn't driving on the highway, but the first time I took it out on the highway I noticed that when I reached 70 mph that a slight shuttering was occuring. Now the problem seems to be worsening, when I drive between 70-72 mph the shuttering increases and can be noticed in the dash. At 75 mph the vibration is at its max but sometimes when I push through the speed to 80 mph the vibration seems to reduce. Thinking it might be the roads I have driven on four major highways and all the same result, however on rare occasion the vibration doesn't occur at all so the mystery continues for me. What is a good starting point? Before I forget, lft front rotor was replaced 3 months ago and brakes felt great up until this month, where it seems like even breaking it just seems as if there is reduced effectiveness as the wheels turn and slow down but grab fine at other points in rotation.

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I also had this problem and found that the cv joints in the transaxles were bad. I replaced the axles at a cost of $65 dollars apiece plus the cost of labor.

Posted on Apr 20, 2009

Try checking your bearings on both sides. as for your brakes when you change your rotors try changing both of them as well as your pads. i had the same problems and that fixed it. if it persists i would look at your ball joints and then your calipers. good luck.

Posted on Aug 21, 2008

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2005 GMC ENVOY 4.2L VIBRATION PROBLEM AT IDLE AND START UP OR ANY TIME NO ACCELERATING


Hello! This is a known problem that is addressed by the following Technical Service Bulletin...Guru...saailer

Subject:Steering System Moan, Groan, Shudder and/or Vibration Type Noise During Low Speed Turning Maneuvers (Replace Steering Gear) #04-02-32-007A - (12/01/2004) Models:2004-2005 Buick Rainier
2003-2005 Chevrolet TrailBlazer, TrailBlazer EXT
2003-2005 GMC Envoy, Envoy XL
2004-2005 GMC Envoy XUV
2003-2004 Oldsmobile Bravada
Short Wheelbase Utilities Built Prior to VIN Breakpoint 52123375
Long Wheelbase Utilities Built Prior to VIN Breakpoint 56137280
This bulletin is being revised to remove the 2002 model year and add the long wheelbase utilities. Please discard Corporate Bulletin Number 04-02-32-007 (Section 02 -- Steering).

ConditionSome customers may comment on a moan, groan, shudder and/or vibration noise while making low speed turning maneuvers. Customers usually notice this condition in parking lot turning maneuvers.
Correction
  1. Diagnose the power steering concern. Refer to Symptoms - Power Steering System (SI Document ID #670351).
  2. Replace the steering gear with a newly designed steering gear. See the parts information below. Refer to Power Steering Gear Replacement (SI Document ID #742314).
Parts Information

Part Number

Description

Qty
88965356
Gear Kit, Steering
(Short Wheelbase Utilities)
1
88967181
Gear Kit, Steering
(Long Wheelbase Utilities)
1
Warranty InformationFor vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time
E9740
Gear Assembly, Power Steering - Replace
Use published labor operation time
E2000
Toe, Front - Adjust

May 03, 2012 | GMC Envoy XL Cars & Trucks

1 Answer

Variable effort steering service light came on how do i sevice it


In this case,the problem can be faulty steering sensor or issue with steering pump.Also the possibility is faulty steering rack and pinion gear.In some cases the problem noticed was faulty fuse.
To confirm what exactly is causing this problem.I recommend you to click the help link below and troubleshoot the problem :-----steering service light came on 2004 Pontiac Grand Prix?http://technoanswers.blogspot.in/2012/02/on-one-my-pontiac-grand-prix-relatred.html
-----------Steering service light ON ? http://technoanswers.blogspot.in/2012/02/steering-service-light-on-gmc-sierra.html
--------This links will help.Thanks.

Feb 15, 2012 | 2004 Pontiac Grand Prix

1 Answer

Steering wheel vibrates when hitting the break at high speeds. was told that the steering column knocked when I had the car inspected a few months ago, but they said it was nothing serious. I was just...


Hi, this symptom is usually caused by warped brake rotors. You can have your rotors resurfaced at any brake shop or you can just buy new ones, depending on the cost breakpoint for your vehicle.

May 30, 2011 | Chevrolet Malibu Cars & Trucks

1 Answer

About a month ago, we had very icy roads, and I lost control of my grand prix while turning left onto a side street. I slid at an angle, hit the curb with my right front tire, and stopped up on the...


when you hit curb it dammaged wheel bearing very common its the equvant ot hitting with a sledge hammer also check ball joint tie rod inner and outter wont cause noise but can be dammaged aswell also have car sent to alignment shop in case some parts were dammaged or bent

plz leave me a comment
reply if you need any more info

Jan 19, 2011 | 2004 Pontiac Grand Prix

3 Answers

1997 Grand Prix GT with 134,000 mi has a slight vibration/shimmy felt at the steering wheel at speeds above 65 mph. All new struts fwd and aft, alignment and new wheels and tires have been replaced in the...


If your tires were not properly balanced then it will cause that. Also, if your rotors are warped then icould cause this to happen. YOu would also notice it when braking if rotors are warped.

Oct 20, 2009 | Pontiac Grand Prix Cars & Trucks

1 Answer

Strange vibrations


The brake discs may be slightly warped.

Mar 07, 2009 | 1999 Honda Civic

1 Answer

2002 Jeep Grand Cherokee leaking coolant and power steering fluid


Just a heads up, $10 bucks will buy you a seal kit for the P.S. pump. I topped mine off for a couple months, then the oring on the high pressure line (from pump, front center) blew and dumped the reservoir in a matter of miles.

The line can be a stinker to get off, recommend driving the car for a few minutes to heat up the pump a little. Don't forget the 20MM wrench.

Feb 18, 2009 | 2004 Jeep Grand Cherokee

2 Answers

Front end vibration


this is most often caused by worn out drive axle constant velocity joints or CV joints as we tech's call them, have them checked for torn boots or excessive wear, I am sure one or both will be found.

Jan 06, 2009 | 2000 Pontiac Grand Prix

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